ME440 Heat Transfer Fall 2014
Name
h
HW Set #1 - Problem #1
Given: A masonry wall has a thermal conductivity of 0.75 W/mK and a composite wall has thermal
conductivityof 0.25 W/mK. Both walls are subject to the same temperature difference.
Find: How thick
M E440 Heat Transfer ' Fall 2016
Name
HW Set #2 - Problem #1
Given: Consider a situation with steadystate, 1-D heat conduction through a plane wall with a thermal
conductivity of k = 50 W/mK and a thickness of L = 0.25 m.
Find: a) Complete the table given
M E440 Heat Transfer Fall 2015
p
e;
H! Set #9 - Problem #1
Given: Although two materials are at the same temperature, one may feel cooler to the touch than the
other. Consider thick plates of copper and glass, each at-an initial temperature of 300 K.
Assu
ME440 Heat Transfer Fall 2014
3 _ Name
HW Set #4 - Problem #1
Given: A long cylindrical rod of diameter 200 mm with thermal conductivity of 0.5 WImK experiences
uniform volumetric heat generation of 24,000 W/m3. The rod is encapsulated by a circular
sleev
ME440 Heat Transfer Spring 2016
Name
HW Set #5 - Problem #1
Given: The heat transfer coefcient for air owing over a sphere is to be determined by measuring the
temperature-time history of a sphere fabricated from pure copper. A 12.7 mm sphere is used
and
ME440 Heat Transfer Spring 2015
HW Set #8 Problem #3 (Problem to submit.)
Given: To cool a summer home without using a vapor compression refrigeration cycle, air is routed
through a plastic pipe (k = 0.15 W/mK, D. = 0.15 m, D0 = 0.17 m) that is submerged